Physical fitness.
D001290:Attitude; D001835:Body Weight; D003327:Coronary Disease / Q000517:prevention & control; D006321:Heart / Q000502:physiology; D008017:Life Expectancy; D009203:Myocardial Infarction / Q000401:mortality; D009790:Occupations; D005082:Physical Exertion; D010809:Physical Fitness; D014481:United States